5pcs N52 15x3mm 4mm Hole Strong Round Countersunk Ring Magnets Rare Earth Neodymium Magnets

Description 5pcs N52 15x3mm Strong Round Countersunk Ring Magnets 4mm Hole Rare Earth Neodymium MagnetSpecification Shape Disc RoundMagnetic face 15mm x 3mm Dia Thickness Hole Dia 4mmPlating Ni Cu Ni Nickel Material NdFeBGrade N52Color SilverQuantity 5pcsApplications 1 Acoustic field the speaker receiver microphone alarm stage audio car audio and so on 2 Electronics permanent magnetic actuator vacuum circuit breakers magnetic relays meter meter sound meter a reed switch sensors 3 Electrical field VCM CD DVD ROM generators motors servo motors micro motors motors vibration motors 4 Machinery and equipment magnetic separation magnetic machinery 5 Other industries magnetized Wax pipe descaling magnetic fixture automatic mahjong machine magnetic locks doors and windows magnetic magnetic luggage leather magnetic toys magnetic tools gifts and packaging 6 Can also be used to extend protected lithium batteries with recessed contact points 7 Electrically conductive making them suitable to extend recessed batteries 8 Perfect for sticking notes on fridge doors 9 Great for DIY projects Tip 1 Strong magnets should Keep away from Ironware and someeasily magnetized iron products such as monitors bank cards computers televisions mobile phones and other2 Strong magnets should be stored in a dry heated environment and need to use of plastic wood cardboard foam to separated and wrapped 3 Magnets might affect water met